Home / 77,744.45-116,542.78-30,389.90

Finding the Fourth Proportional to 77,744.45, 116,542.78 and 30,389.90

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Solution

The fourth proportional to 77,744.45, 116,542.78 and 30,389.90 is: 45,555.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,744.45 : 116,542.78 = 30,389.90 : x
  2. Step 2: Convert to fraction form
    77,744.45/116,542.78 = 30,389.90/x
  3. Step 3: Cross multiply
    77,744.45x = 116,542.78 × 30,389.90
  4. Step 4: Simplify right side
    77,744.45x = 3,541,723,429.92
  5. Step 5: Solve for x
    x = 3,541,723,429.92/77,744.45
  6. Step 6: Final answer
    x = 45,555.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.